package com.andy.interceptor;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Arrays;
import java.util.Map;

public class LogInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("preHandle......");
        Map<String, String[]> parameterMap = request.getParameterMap();
        for(Map.Entry<String,String[]> entry:parameterMap.entrySet()){
            System.out.println(entry.getKey()+" : "+ Arrays.toString(entry.getValue()));
        }

        return true;
    }




    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        System.out.println("postHandle.....返回");
    }



    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        System.out.println("afterCompletion......页面渲染结束");
    }
}
